單項選擇題

During fueling，all doors，hatches，and ports（）.

A.to windward should be opened and the ones to leeward should be closed
B.to leeward should be opened and the ones to windward should be closed
C.should be opened
D.should be closed

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單項選擇題

Cracks may be prevented from developing at the corners of welded plating inserts by（）.

A.squaring the corners
B.rounding the corners
C.plug welding the corners
D.slot welding the corners

單項選擇題

Connecting elements of a mooring system should be fabricated from（）.

A.cast iron
B.forged steel
C.stainless steel
D.cast steel

During fueling，all doors，hatches，and ports（）.

你可能感興趣的試題

Cracks may be prevented from developing at the corners of welded plating inserts by（）.

Connecting elements of a mooring system should be fabricated from（）.

During fueling，all doors，hatches，and ports（）.